Switchgear · Transmission
Transformer Insulation Resistance
What is measured An insulation resistance test is used to assess the condition of a transformer insulation system. It is one part of a…
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Transmission
Follow electrical power across overhead lines, substations and long-distance networks.
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Switchgear · Transmission
Transformer Oil and Winding Temperature Indicators
Two temperature indications Oil temperature and winding temperature indications provide different information about a transformer.…
Guide
Switchgear · Transmission
Transformer
This electrical transformer training course introduces basic safe operational and field diagnostics of power transformers. This includes a…
2022-11-25
Switchgear · Transmission
Potential Transformers
Purpose A potential transformer, also called a voltage transformer, provides a scaled voltage for measurement and protection. Its primary…
Guide
Switchgear
Isolators in Substations
Purpose An isolator, also called a disconnector, separates a circuit from a supply. It is part of an isolation arrangement; the presence of…
Guide
Transmission
High Voltage DC Transmission
Conventionally power transmission is affected through High Voltage AC systems all over the world.HVAC transmission is having severe…
2022-11-24
Transmission
High Voltage AC Transmission
Course Objectives conduct safe HVAC switchyard operation understand principles of systematic maintenance of various switchyard equipment of…
2022-11-24
Transmission
Transformer Oil: Insulation, Cooling and Condition
In an oil-filled transformer, insulating liquid helps separate electrical parts and carries heat away from internal components. Its…
2026-10-31
Transmission
Electrical Tools and Equipment Used in Substations
Substation work calls for different equipment depending on the task, the installation and its electrical hazards. A voltage detector, a…
2026-10-31
Transmission
CT Console Box Wiring: Secondary-Circuit Overview
A current transformer (CT) supplies a representation of current to measuring instruments and protective relays. In a substation, the…
2026-10-31
Transmission
Equipment Used in Electrical Substations
Substations connect parts of an electrical power system and may change voltage, switch circuits, or both. Their equipment varies with the…
2026-10-31
Transmission
On-Load Tap Changers: How Transformers Adjust Voltage
An on-load tap changer (OLTC) lets a transformer adjust its voltage ratio in steps while continuing to supply its load. It changes which…
2026-10-31
Transmission
Surge Arresters in Electrical Substations
A surge arrester helps protect electrical equipment from brief overvoltages. Substations use these devices as part of a broader protection…
2026-10-31
Transmission · Switchgear
Busbar FAQ: Arrangements, Materials and Safety
A busbar is a common conductor used to connect electrical circuits. In a substation, it provides a connection point for circuits operating…
2026-10-31
Transmission
Local Control Cubicles in Substations
A local control cubicle (LCC) can provide a point for control and monitoring associated with substation equipment. The equipment it serves…
2026-10-31
Transmission · Switchgear
Gas-Insulated Substations: An Introduction
Gas-insulated switchgear (GIS) can form part of a substation's switching arrangement. Its configuration depends on the equipment selected.…
2026-10-31
Transmission
Battery Systems in Grid Substations
A grid substation uses auxiliary systems alongside its high-voltage equipment. One such system brings together batteries, charging…
2026-10-31